Carbureter.



O. KUSTEL.

CARBURETER. APPLICATION FILED SEPT-24.1915.

Patented May 23, 1916.

lA/VE /VTOR OSCHH [(067511 jy n y Q. 2 WW v W ATTORNEYS OSCAR KUSTEL, O35 ONTARIO, CALIFORNIA.

meow-Wm Specification of Letters Pa tent. Pafigygfigqi 12, 7 233 rip iliection filed September 241-,1215. Serial No. 52,395.

Z39 UZZ whom c'z may; concern:

lie known bhat L Usual: hosrnr, a c1t1- ihe United States, and a resident of lain-1o in the com new and useful improvement. in Uilifblb zen or z' y of San fierhardinc and i i-tare Califoin N have ini-cnied a archers, of which the fcllowing is specification.

' invent-ion an iniproveznen in C21 and has its ohjec; to provide mechanism of the characccr ein a valve c provided. l'raving 2- Valve for contrcllii r the inlet of air and l a. feed ."(JIGW r controlling the inhe and crew the screw i inlet valve are connected in such v g J will more bogerner, and i'her may be adjusted with res cct so she moving means independently cf the In the drawings :--IJir0' re 1 is a vertical section thrcngi'h the carhnretcr. Fig. 2 18 a 'front view cf the indicati m" mechanism,

M l sections on the lines 3-"l l, and Fig 2 with the c 1 z; is a per; empire new of Mg.

\ place and the said casing extends through the convex wad of the elbow as shown, while the inner end is tapering as indicated at 7. and extends into the nipple 1 when the said nipple is in place. A feed screw 8 is threaded into the outer end of the casing, the said casing being internally threaded to recciiie the feed screw and a valve stem 9 is threaded through the feed screw, the stem l'iaving c crcss head or handle 10 at its miter end.

The valve 11 tapering or conical as shown, and cooperates with a. similarly shaped seat at the inner end of the taper ion 7 ci 'i'hc casing. The feed screw 8 has an extension 12 at iis inner end and this extension carries a tapering ring 13 its inner and which fits the interior of the tapering portion '4' or the valve casing. i will he noted that a portion 14- of the stem is plain and reduced between the threaded portion and the valve 11, and ihis portion ll of the stem docs nor: fill the here of the feed screw GYi QI'IS OIL An annular chamber is i-hus provided encircling theeiircnsicn 12 off {he feed screw, and between the smile. and the ring 13, and a pipe 15 extends from the casing (S outwardly through the wall of the elbow, the older end of the pipe being; er:- ternaliy threaded shown.

A handle 16 is connected with the outer end of the feed screw, in order to permis the same to he turned, and a spray cap 1? is connected to the inner end of the valve casing, by means of a tubular extension er sleeve 18. The inner end of the tapered portion 7 of the casing (3 is reduced and externally threaded "for engagement by the adjacen end of the sleeve, and he spray cap 1'? has a central opening and :1 reduced extens on coaxial with the opening- :i'or engaging Within the sleeve. 7

The :5] acre 18 has a diaphragm 19 inter- .iediatc the ends thereof, and this diaphragm is provided with two ports or pascxtending helically from the upper to the lower face. the said poi- 3s or passages 2!) being oppositely arranged as shown, and on opposite sides oi the ccnbcr of the sleeve. The openings of the ports or passages at the inner face of the diaphragm are at opposite sides oi ihc conler and the openings at the outer faces of the diaphragm are also at opposite sides. The opening of each port or passage at the cuter face of the diaphragm is adjacent to fihc opcnii'ig of the other port". or passage at the inner face, as indicated in Fig. 4;. l

The ring or casing is the air intake for the carbureter, While the pipe 15 is the gasolcne or fuel intake. The air intake is controllrcl by a. valve mechanism, consisting of two disks 21 and 22. The disk 21 has an inwardly extending hub 23, and a headed pin 2% passes through the hub from Within outward and through a central opening in the disk 22. The disks are thus journalcd coaxially on the pin, and the disk 21 has a, marginal flange 25, which is threaded on to Lhc exterior of the ring 5. The disk 21 is thus axed, while the disk 22 may rotate with respect to the disk 21. Two sectors 26 and 27 respectively are cut out from each disk, each sector being approximately a quadrant of the disk, and the two sectors of each disk are oppositely arranged. Thus each disk has openings corres 'ionding to approximately halt the ellective area of the disk. The head of the pin 2i bears against the inner end of the hub 23. and the outer end passes beyond the outer face of the disk 22, and a lever 28 is arranged on the pin, and is held in place by a cotter pin as shown. This lever-28 has a loop or staple '29 at its lower end, through which extends the arm 16 before mentioned. The disk has a segmental extension 30, which is provided with a series of openings 31, the said openings being arranged in the line of an arc concentric with the disk, and the lever 28 has an opening which is designed to register with any one of the openings 31, and a pin 3'2 is passed through the openings to hold the parts in adjusted position.

The arm 16 before mentioned, extends from the split hub 33, which is held on the lower end of the feed screw S. This hub has two radial lugs 3%, at its ends and a set screw 35 is passed through registering openings in the lugs and by means of the screw the ring or hub may be clamped on the feed screw. The hub has another arm 36, extending at a right angle to the arm 16, and the free end of the arni 236 is provided with a loop or eye 37. i

The in'iproved carburetor will feed fuel and air in precisely the proportions desired,

and while the relative in'oportions may be varied by adjusting the mechanism the proportions cannot vary when once set unless the mechanism is afterward changed. When once set, the carburetor will operate without the throttle, and no float is necessary for controlling the fuel. The feed of the fuel is regulated by the valve 11, while the air intake is regulated by th valve 22, the said valve being turned to cause the openings 27 to coincide or register more or. less with the openings 26 as may be desired.'

In operatiomthe air intake is regulated in accordance with conditions by turning the valve 22. This may be done by releasing the pin 32 after which the valve 22 may be turned with respect to the arm 28 and with respect to the disk 21. is regulated by means of the :t'eedscrew S. This screw is set to feed the desired amount of fuel, the set screw 35 being loosened to permit the turning of the feed screw. When the fuel feed and the air intake have been.

adjusted to the proper amounts, the set screw 35 is tightened and the pin -32 is replaced.

When a partial vacuum is created in the engine by the suction, air rushes in through the openings 26 and 24, and passes up ar und '7 as its seat.

The [low of gasolene.

the valve casing. The partial vacuum in the element 1 of the casing will vaporize a portion otthe fuel which passes the valve 11, and will carry the atomized fuel mixed with air into the engine. The greater the suction obviously the greater the amount of fuel atomized, and the fuel may be nicely controlled by means of the valve 11. The arrangement of the-openings 20, that is, helical with respect to the long axis of the valve :asing, imparts to the fuel a rotary or helical motion before passing through the opening of the spraytcap 17. The greater the suction the greater the amount of mixture that is drawn in but the relative proportion of air and fuel will remain the same. The

whirling etl'ect imparted to the fuel by the passages 20 assists materially in vaporizing such fuel preliminary to its escape through the outlet of the cap 17, thereby facilitating the mixing of the fuel with the air before the entrance of the mixture into the inanifold.

If it is desired to provide for a greater amount of fuel, the feed screw is lowered, thus permitting a greate amount of fuel to pass the element 13 which is in etl'ect a valve cooperating with the interior of the casing The amount of air entering maybe regulated independently of the amount of fuel by means ol the pin \Vhenever the air intake is adjusted without removing the pin 32, the ,valve 13 is also adjusted at the same time.

It will be obvious that when the lever 28 is moved in the direction of the arrow in Fig. 2 the arm 16 will be moved in a direction to move the valve l3 upward. That is, whenever the openings 26 are reduced in area, the amount of fuel i'ed is simultane-' ously reduced, and when these air intakes are increased or opened the feed of the fuel is also increased.

A suitable controlling mechanism is con nected with the eye 37 of the arm 30. This arm comprising the hub 33 and the arms 16 and 36 is an angle arm. The connection with the arm 36 is such that the chauffeur may move the arm in either direction. When the arm is moved in one'direction, the fuel feed and the air supply are simultaneously reduced, while when the arm is moved in the other direction the :t'uel and air supplies are simultaneously increased.

A l'ter the fuel l'eed is set for the amount of air required to make a proper mixture no further adjustment is necessary. If more speed is required the arm 36 is moved to allow more fuel to pass the two valves 13 and ll, and for less speed the arm 36 is moved in the opposite direction. The screw 10 may be turned to withdraw the valve ll away from its seat until more of the fuel'is obtained. i 'ated, the two valves 13 and 11 coiiperate in regulating the supply of iuel.

primary valve and having screw thread connection therewith to admit of independent adjustment.

5. In. a carburetor, a main casing having fuel and air inlets and an outlet for the mixture, an auxiliary easing having communication with the fuel inlet and provided with an outlet and an intermediate valve seat, a priinary valve fitted within the auxiliary casing and having screw thread connection therewith, a secondary valve carried by the primary valve and having a screw thread-c0nneetion therewith, air controlling means,a member havingadjustable connection with the air controlling means and an operable member forming connecting means between the sanl member and the prnnary fuel con trolling valve.

6. In a carbureter, a main casing having fuel and air inlets and an outlet for the mixture, an auxiliary casing having connection with the fuel inlet and provided with an outlet and an intermediate valve seat a primary valve fitted within the auxiliary casing and having screw thread connection therewith, a secondary valve carried by the primary valve and having screw thread Connection therewith, air controlling means, a member having adjustable connection with the air controlling means, and an operable member having adjustable connection with the primary fuel controlling valve and forming connecting means between said primary fuel valve and the member having adjustable connection with the air controlling means.

(JAR KUSTEL. 

